Roof ventilator



March 24, 1959 H. K. TRUNNELL 2,878,743

ROOF VENTILATOR Filed Nov. 26, 1956 20 36 FIGS/ FIG. 6

56 FIG. 9

INVENTOR. HAROLD K. TRU N NE Ll.

ATTORNEYS her. 7 preferred form includes a body portion extending for [ice Patented Mar. 24, 1959 ROOF VENTILATOR Harold K. Trunnell, Eugene, Oreg.

Application November 26, 1956, Serial No. 624,301

4 Claims. (CI. 98-42) This invention relates to a roof ventilator and more particularly to a ventilator which is of simple construction and made up of a relatively few number of parts and which may be positioned on either a flat or a sloping rounding the opening in the flashing member and fitting and being secured to a portion of the flange of the flashing member to form a support for the cover member. The front, back and side portions of the cover member form .a continuous depending flange around the top portion of the cover member and the front portion is spaced toward the front of the ventilator from the opening in the flashing member and also spaced above such member to provide an Opening for the discharge of air. The top portion of the cover member is spaced above the top of the flange on the flashing member and the ventilator also preferably contains a baflle member fitting the'remaining portion of the flange on the flashing member and extend- .ing upwardly from the flange and having an upper portion spaced from the top portion of the cover mem- The baflie member may take various forms and'a wardly from the flange on the flashing member toward the front portion of the cover member and spaced from both the front portion and the side portions of the cover member and also having an upturned flange around its edges, the upper edge of which is spaced below the top of the cover member. In the preferred form, the vent opening in the flashing member is round so as to be adapted to receive a round vent pipe leading from a kitchen or bathroom exhaust fan, although the vent opening may be of oval or elliptical .form, particularlyfor- 3 ventilators with which no vent pipe is employed, although the oval vent opening may be of such size that the vent pipe may be compressed laterally to fit the opening.

It is therefore an object of the present invention to provide an improved roof ventilator in which a minimum number of parts are employed which can be easily installed as part of a roof to prevent entrance of rain or .snow while providing for dischargeof air through the roof.

Another object of the invention is to provide a roof ventilator in which a cover member having a depending rear portion is directly secured to an upturned flange surrounding a vent opening in a flashing member and the cover member extends forwardly and is formed to prevent in conjunction with a bafile member the entrance of rain or snow while providing for discharge of air through the "roof. r

A further object of the invention is to provide aroof ventilator which may be fabricated from two main mem- 'bers and abaffle element, which ventilator can be readily installed on a roof to provide ventilation therethrough while" preventing the entrance of snow or rain through such'ventilator.

Other objects and advantages of the invention will appear in the description of preferred embodiments thereof shown in the attached drawing of which:

"Fig. 1 is a side elevation of a roof ventilator in I ance with the present invention;

Fig. 2 is a plan view of the ventilator of Fig. '1;

Fig. 3 is a vertical section taken on the line'3-3-of Fig. 2;

Fig. 4 is a vertical section similar to that of Fig. 3 through the cover member only of the ventilator;

Fig. 5 is a plan view of a preferred form of baflle member; 2 N Fig. 6 be Fig. 5

Fig. 7is a view similar of ventilator;

a Fig. 8 is aplan view of a further modified form of ventilator; and

Fig. 9 is a vertical section taken on the line 9-9 of Fig. 8. i

' Referring more particularly to Figs. 1 to 6 of the drawings, the ventilator 10 includes a base member 12 having an integral upturned circular flange 14 surrounding a-roun'dvent opening 16 in the base member 12. The vent opening 16 is preferably positioned midway between the lateral edges of the base member 12 and near one end ofs'uch 'base member. The ventilator also includes a "cover member 18 which has a top portion 20 spaced above thetop' of the flange 14 and of considerable greater area than the ventopening 16. The cover member 18 has "a back portion 22 which depends from the top portion 20 and partially surrounds the opening 16 and fits a portion of the flange 14. The back portion 22 is secured to the flange 14, for example, by spot welding. The cover member also includes a depending front portion 24' spaced toward the front of the ventilator from the opening 16 and also depending side portions 26 extending between the front portion 24'and the back portion 22 to form with the front and back portions a continuous flange depending fromthe top portion. The lower edges 'of the front portion 24 and side portions 26 are spaced above the base member 12 to provide for the discharge of air. The base member 12 is in the form of a flashing member having portions extending in all directions from the flange 14. The back portion of the cover member extends downwardly below the side and front portions and as shown most clearly in Fig. 2, the cover member 18 of Figs. 1 to 6 is considerably wider at its front portion than at its back portions and may be generally triangular in form.

"The preferred form of baflle member is best shown in Figs. 5 and 6 and includes a depending arcuate flange portion 30 which extends around and fits'the remaining accord* vertical section taken on the line 6-6 of to Fig 3 of a modified form portion of the circular flange 14 on the base member 12;"

andis secured thereto in a suitable manner, for example, by spot welding. The bafile member 29 has a body portion 34 extending toward the front portion 24 of the cover member and such body portion preferably diverges so as to be somewhat greater in width at its front portion than its back portion. The body portion 34 has an upturned flange 36 around its front and side edges, such flange extending upwardly within the front and side portions of the cover member 18"and being spaced ;from such-front and side-portions of the cover member. The upper-edge of the-upturned flange'36 is-spaced be- Jlow'-"the:top'20 of the cover member 18 so as'to provide for "discharge of i-air. fromthevent opening- 16 and the pover member 18. By extending th' 'batfle member--29 forwardly toward the front of the cover member 18, a much larger discharge area'for air is provided for a given vertical height of the ventilator than .if the baffle extended directly up fromthe flange 16. Preferably, the back portion 22 of the cover member extends forwardly of the rear edges of the baffle member 29 so as to overlap the upturned flange 36 of the .baffle member to prevent entrance of snow or water around the rear end of the flange 36. Also, in order to prevent insects entering through the ventilator, a screen 38 can be secured to the upturned flange 36 of the baflle member 29 and extend upwardly therefrom to the top portion of the cover member 18.

A modified form of ventilator 40 is shown in Fig. 7 and includes a base member 12 of the same form as the base member 12 of Figs. 1 to 6. The cover member 42 of Fig. 7 may be of the same general form as the cover member 18 of Figs. 1 to 6, but in order to accommodate a baffle member of different shape and still provide adequate area for discharge of air, the cover member 42 is of greater vertical height than the cover member 18 of Figs. 1 to 6 and has front, side and back portions 44, 46 and 48, respectively, of greater vertical height. The baffle member 50 of Fig. 7 extends directly up from the flange 14 of the base member 12 and has its lower portion fitting and secured to such flange, for example, by spot welding, and the back portion 48 of the cover member 42 may also fit and be similarly secured to the flange 14. In Fig. 7, a screen 52 may be secured to the baffle member 50 and extend upwardly to the top of the cover member 42 to prevent entrance of insects through the ventilator. The cover member 42 may have a smaller dimension from front to back than the cover member of Figs. 1 to 6 and it will be apparent that adequate discharge area for the ventilator is provided for by the greater height of the top of the cover member 42 above the baffle member 50, even though the baflie member 50 has substantially less distance around its periphery.

The further modified ventilator, shown in Figs. 8 and 9, is similar to the ventilator shown in Fig. 7 except that the flange 54 of the base member 56 provides a vent opening which is not circular but which is of oval configuration and the cover member 58 has its back depending portion 60 shaped to conform with the back portion of the flange 54. With the structure shown in Figs. 8 and 9, the cover member 58 may be generally rectangular in plan with rounded corners .and because of the greater length of the forward edge of the flange 54, a baflied member 60, which extends directly upward from the flange 54 in the same manner as in the structure shown in Fig. 7, may be employed without substantially increasing the overall vertical height of the ventilator over .that of Figs. .1 to 6. A screen 62 may also be provided in the structures of Figs. 8 and 9. It will be apparent that a baflie of the same general form as that shown in Figs. 1 to 6, i.e., with a portion extending forwardly from the flange 54 may be employed in the structure of Figs. 8 and 9, if desired, in order to obtain an adequate area of discharge opening with reduced vertical height of the ventilator. It will also be apparent that in such structures as .shown in Figs. 7, 8 and 9, the batfle member may be formed integrally with the base member.

While preferred embodiments of the invention have been disclosed, it is to be understood that the invention is not limited to the details thereof and that the invention is to be limited only by the scope of the following claims.

I claim:

1. A roof ventilator comprising a flashing member forming a base for said ventilator and having an upturned flange spaced inwardly of its edges and surrounding and defining a vent opening, a cover member-having a top portion spaced above the top edge of said flange and extending'over and being of greater area thansaidppening, said cover member having front, side and back portions depending from said top portion, said back portion extending below said front and side portions and extending partly around such opening and fitting a portion of said flange and being secured to said flange to form a support for said cover member, said front portion being spaced toward the front of said flashing member from said opening and having its lower edge spaced above said flashing member, said side portions extending between said front portion and said back portion and having their lower edges spaced above said flashing member, a baffle member having a lower portion fitting the remaining portion of said flange and secured to said flange, said baflie member having an upper portion extending upwardly within said front and side portions above the lower edges of said front and side portions and spaced from said front portion, the upper portion of said baflle member being spaced below said top portion.

2. A.roof ventilator comprising a flashing member forming a base for said ventilator and having an integral upturned flange spaced inwardly of its edges and sur rounding and beingcurved to define a vent opening having acurved bound ry, a cover member having a top portion spaced above the top of said flange and extending over and being of greater area than said opening, said cover member having front, side and back portions providing a continuous depending flange around said top portion, said back portion extending below said front and side portions and extending partly around said opening andI fitting a portion of said flange and being secured to said flange to form a support for said cover member, said front portion being spaced toward the front of said flashing member from said opening and having its lower edge above and spaced from said flashing member, said side portions also having their lower edges above and spaced from said flashing member, a baffle member having a lower portion fitting the remaining portion of said flange and secured to said flange, said baflle member having an upper portion extending upwardly within said front and side portions above the lower edges of and spaced from said front and side portions, the upper edge of said baflle member being spaced below said top portion.

3. A roof ventilator comprising a flashing member forming a base for said ventilator and having an upturned integral flange spaced inwardly of its edges and surrounding and defining a round vent opening, a cover member having a top portion spaced above the top of said flange and extending over and being of greater area than said opening, said cover member having front, side and back portions depending from said top portion, said back portion depending below said side and front portions and extending partly around said opening and fitting a portion of said flange and being secured to said flange to form a support for said cover member, said front portion being spaced forwardly from said opening and having its lower edge .above and spaced from said flashing member, said side portions extending between said front portion and'said back portion and having their lower edges above and spaced from said flashing member, a baflie member having a lower portion extending partly around said opening and fitting the remaining portion of said flange and secured to said flange, said baflie member having an upper portion extending upwardly within said front and said side portions above the lower edges of and spaced from said front and side portions, the upper portion of said baflle member being spaced below said top portion.

4. A 'roof ventilator comprising a flashing member forming a base for said ventilator and having an upturned flange positioned inwardly of its edges and surrounding and defining a vent opening, a cover member having a topportion spaced above the top of said flange and extending over and being of greater area than said opening, said cover member having front, side and back portions dependingfrom said top portion, said back portion extending partlyaround said opening and fitting a portion of said flange and being secured to said flange to form a support for said cover member, said front portion being spaced toward the front of said flashing member from said opening and having its lower edge above and spaced from said flashing member, said side portions extending between said front portion and said back portion and having their lower edges above and spaced from said flashing member, and a bafiie member having a lower portion extending partly around said opening and fitting the remaining portion of said flange and having an upper portion extending toward said front portion and provided with a flange on its front and side edges extending up wardly within said front and side portions and spaced therefrom, the upper edge of the last mentioned flange being positioned above the lower edges of said front and side portions and being spaced below said top portion.

References Cited in the file of this patent UNITED STATES PATENTS 1,706,389 Bayliss Mar. 26, 1929 2,210,996 Woods Aug. 13, 1940 2,300,842 Leslie Nov. 3, 1942 2,565,131 Johnson Aug. 21, 1951 2,601,820 Paul et a1. July 1, 1952 2,628,551 Leigh Feb. 17, 1953 2,806,419 Artis Sept. 17, 1957 

